#include <iostream>
#include <header.h>
using std::cout;
using std::endl;

void test0(){
    int num = 100;
    int num2 = 200;

    int &ref = num;
    ref += 1;

    /* 此处是复制，不是更改绑定 */
    ref = num2;
    cout << num << endl;

}
int main(int argc, char* argv[]){
	ARGS_CHECK(argc, 1);
    test0();
	return 0;
}